Antioxidant Effect of Orange Peel Extract on Chemical Quality, Sensory Properties, and Black Spots of Farmed White Shrimp
Journal Title: Journal of Nutrition and Food Security - Year 2018, Vol 3, Issue 1
Abstract
Background: Black spots are a major problem in commercial shrimp species and can have negative effects on shrimps' appearance, quality, shelf life, economic value, and product acceptance by consumers. This study was conducted to investigate the effect of orange peel extract on chemical and sensory qualities as well as black spots on Litopenaeus vannamei species of white farmed shrimp. Methods: Samples included treated shrimps at concentration of 150 g, orange peel extract for 30 minutes, and control shrimps. After storage for 10 days at 1 ± 4 °C, the samples’ chemical and sensory evaluations were performed with an interval of 5 days. Results: pH factors, peroxide value, and total volatile network (TVN) of treated samples were significantly lower compared to those of the control samples (P < 0.05). There was no significant difference in the moisture content. Black spots did not appear in the treated sample until the end of refrigerated storage, but melanosis appeared in control shrimp 5 days after storage. Conclusion: The results showed that because of having antioxidant and antimicrobial activity, orange peel extract improved shrimps' chemical and sensory qualities and reduced their black spots in the refrigerator temperature.
Authors and Affiliations
Shirin Vakili, Seyed Ali Yasini Ardakani
Keywords
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